My wife and I use K&N filters in our vehicles, I have a 03 De ville, and she has an 04 Hyundai XG 350L, they keep our engine and cabin much cleaner than any other filter, we never have had a problem with crap getting into our vehicles, the air filters are cleanable, and the oil filters keep the oil cleaner longer than other filters have, using the gas filters we have never had a problem with our fuel system. My son uses cheap filters for his newer truck and has had problems with his engine sucking in dirt, and fuel system problems, he has since switched to K&N, some people you have to hit over the head but he is learning. Thank you K&N for great products.